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From "Uwe Schindler (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-6137) RussianLightStemmer incorrectly handles the words ending with 'ее'
Date Thu, 25 Dec 2014 15:42:13 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-6137?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14258787#comment-14258787
] 

Uwe Schindler commented on LUCENE-6137:
---------------------------------------

Hi,
I also agree you should raise this issue at the CLEF people who invented that stemmer!

I talked with my wife (she has russian as mother language) and she can confirm your problem
with some *neutral* adjective forms, but - as expected - she can confirm that removing "-ee"
is too risky, because this would change also superlatives (also using -ee), too, which is
not intended to be done by a "light stemmer". I think this might be threason not to remove
"-ee" by default (this changes meaning).

> RussianLightStemmer incorrectly handles the words ending with 'ее'
> ------------------------------------------------------------------
>
>                 Key: LUCENE-6137
>                 URL: https://issues.apache.org/jira/browse/LUCENE-6137
>             Project: Lucene - Core
>          Issue Type: Bug
>    Affects Versions: 4.10.2
>            Reporter: Alexander Sofronov
>         Attachments: LUCENE-6137.patch
>
>
> Consider the forms of Russian word "синий" and the result returned by RussianLightStemmer:
> синий -> син
> синяя -> син
> синее -> сине
> синие -> син
> I think the correct result should be:
> синий -> син
> синяя -> син
> синее -> син
> синие -> син



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